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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 4 |
| 3 | 3 |
| 4 | 16 |
| 5 | 15 |
| 6 | 64 |
| 7 | 63 |
| 8 | 288 |
| 9 | 95 |
| 10 | 1728 |
| 11 | 575 |
| 12 | 4352 |
| 13 | 2303 |
| 14 | 21504 |
| 15 | 23551 |
| 16 | 84480 |
| 17 | 100863 |
| 18 | 278528 |
| 19 | 147455 |
| 20 | 1390592 |
| 21 | 1976319 |
| 22 | 5849088 |
| 23 | 4276223 |
| 24 | 20455424 |
| 25 | 2564095 |
| 26 | 121929728 |
| 27 | 19431423 |
| 28 | 405143552 |
| 29 | 117571583 |
| 30 | 1693974528 |
| 31 | 13107199 |
| 32 | 8524922880 |
| 33 | 3546284031 |
[1,0,4,3,16,15,64,63,288,95,1728,575,4352,2303, 21504,23551,84480,100863,278528,147455,1390592, 1976319,5849088,4276223,20455424,2564095, 121929728,19431423,405143552,117571583,1693974528, 13107199,8524922880,3546284031] |